This is a user configurable finger daemon that
allows users to alter the information being sent
about them via the finger protocol.
Xfriends is a buddy list program which uses fingerd (so your buddies need not run Xfriends). It uses non-blocking sockets and has a large number of options.
A mixed-signal, mixed-language multi-level simulator.
An easy to use, but still quite capable firewall for Netfilter/iptables.